Rotary power-muffler.



Y G. LEWIS. ROTARY 'POWER MUFFLER.

AFPLIOATION FILED SEPT..3, 1910.

Patented July 1,`1911.l

2 SHEETS-SHEET 1.

lll/III EN m MW M m e m m r a ad G. LEWIS. v

ROTARY ROWRR MURRLRR.

APPLICATION FILED SFPT.3, 1910. 997,624, Patented July 11, 1911.

2 SHEETS-SHEET 2.

UNITED STAT-Es *PATENT oFFroE. f

A GEORGE LEWIS, or 'BRooKLYng New Yoan..

ROTARY yownnfnorrmn.

To' all whom .it may concern:

Be it known that I, GEORGE LEWIS, a citizen of the United States, and residing at Brooklyn, in the county of Kings and State Oof New York, have invented certain new and useful 'Improvements in Rotary Power- Mufflers, of which' the following is a specilication, such as will enable those skilled in the art to which it appertains to make and use the same.

This invention relates to mulllers for explosion engines, or internal combustion engines, and the object thereof is to provide anv improved device of this class which may be connected with the cylinder of the engine in any desired manner and which will operate to exhaust the exploded or burned gases from the cylinder, also to deaden the sound produced by the exhaust and to prevent, to a large extent, the escape or discharge of .said gases into the air in visible form; a

further object being to provide a mutller for inventions of the class specified by means of which the exhaust will be utilized to aid in driving the engine.

The invention is :fully disclosed in the following specilication, of which theaccompanying drawing forms a part, in which the separate parts of my improvement are deseach of the views, and in which ignated by suitable reference characters in Figure 1 is a side view of an internal combustion en me and showmg my lmproved rotary mu er connected therewith; Fig. 2 a

central vert-ical section of the mul'ller taken ,on the line 2 2 of Fig. 3; Fi 3 a side view of the muiller looking in theV irection of the arrow v ofFig. 1;*Fig. 4 a view of one side of an inner rotary member which formsv a part of the mutller; Fig; 5 a view of the opposite side of said member; Fig. 6 a section on-'the line of Fig. 2; and, Fig. 7 a plan *or face view of the rotary member shown in Figs. 4 and 5.

n the drawing lforming part of this specification, I have shown at a an internalcom- Specica-tioli of Letters Patent. Patented July 11, 1911-.

Application led September 3, 1910. Serial No. 580,40(J1` l may be applied to any kind or class of an internal combustion engine. i

My improved rotary power muiller. is shown at b and is constructed and connected with the shaft z3 and operated thereby as hereinafter described. The muler b com bearing a at the other end of. said shaft lits in the tubularneck c2, and the muffler is secured in position by. a set screw 08. The side wall c of the mufer is provided with ex-l haust ports or passages c, any desired number of .which may be employed, and which are preferably arranged in a circle as shown in Fig; 3.

Tithin the main casing of the muiller is placed a rotary member e which is clearly shown in Figs. 2, 4, 5 and 7, said `rotary member, consisting o'f a drum-shaped casing, one side of which, the side adjacent to the side wall c of the main casing, is open andb provided with an annular flange e2, and the .drum-shaped casing e, the flange e2 thereof,

the face or rim portion of the main casing, and the detachable side wall d of said main casing form an annular chamber f in said main casing with which theexhaust pipe c5 communicates.

The closed side of the rotary member e is provided centrally with a tubular outlet e which passes through a corresponding aperture in the `detachable side d of the main casin and which communicates with a radis. passage 'g formed in connection with the detachable side d of the main casing by a raised radial member e* formed integrally therewith, and the radial passage. g co'mmunicates at g2 with the annular chamber f, this communication `being diagonally opposite the point, where the exhaust pipe a communicates with said chamber.

` The rotary member e o f the muiller is clear] shown in detail in Figs. 2, 4, 5 and 7, and t e face e thereof is provided at regular intervals with transverse blades e, four of .which are-preferably employed, and which los v sponding equal parts, and said blades are .,ormedfmtegrally with the tace ot said roconnect with central hub member /tf have the annular chamber at the point where blades econne'ct with the -flange e2, the said blades are provided with 'fillets el. rthe rotary member e is also prowide, in the form of constructionshown, as "Sthe transverse depth of said rotary member,

facilitates the operation ot drawing the exfore mentioned are accomplished, or in other er {J1-.

divide the annular chamber j into correry member and the flange e2 thereof, and

vided with a plurality of radially 'arranged blades 7L, the outer ends of which are as and said blades are tapered inwardly and ing a screw-threaded extension 71,3 which, in practice, is screwed into the end of the shaft a3 as clearly shown in lT ig. 2, and it will be observed that the rotary member e in con-v nection with the side c et' the main casing Yforms a central circular chamber e' in which the radial blades iz. are located, and the exhaust ports c4 -in the side @of the main casing are preferably near the outer part of this chamber.

The operation will be readily understood from the foregoing.description when taken inconnection with the accompanying drawing and the following statement thereof. ln practice, the rotary member e of the muitler is rapidly revolved by the shaft a3 of the engine, and in thisogeration the annular chamber f is converted into a vacuum chamber, or partially so, and the exhaust from the cylinder is drawn therefrom 'through the pipe co5, into said chamber bythe blades 6G, and from said annular chamber f the said exhaust is forced by the blades e into the radial passage 'g and through the port or passage e3 into the chamber c' in the'iotary member e and in the rapid revolution of said rotary member the said exhaust is whirled out by the blades 7L through the exhaust ports or passages c4. rlhe operation oi the blades h is also to term a vacuum or a partial vacuum in the chamber i, and this hausttrom the cylinder of the engine into In the above described operation, the burned gases or exploded gases, which are drawn into the chamber z' ot the rotary member c are broken up and iinely distributed by the blades it and the'exhaust from the ports or passages et is invisible or approximately so, and the operation ot my improved muffler is'such as to deaden, or do away with the sound of the exhaust, and by means ot the construction thereof, as shown and described, the three objects hei-einbewords the exhaust of the exploded or burned gases from the cylinder ot the engine is facilitated, the sound ot the discharge is ob viated, or done awaywith and the exhaust is discharged through the ports or passages ci in a practically invisible ferm; and in ticular method of, or means tor coi'mectingthe mutlier with the engine, nor lis the use of my improvement limited to any particular kind or class of an internal combustion engine; and various changes in and modifications of the construction herein dcscribed may be made, within the scope of the appended claims, without departing from the spirit oit my invention, or sacriiicing its advantages. l

Vlflaving fully described my invention, what l claim as new and desire to secure by Letters Patent, is

l. il rotary muiller for internal combustion engines, said mutl'ler comprising a oylindrical casing, a rotary drum-shaped inember mounted in said casing and around which is an annular chan'iber, said rotary member being open at one side, and the corresponding side ot' the main casing being provided with exhaust ports or passages and the opposite side ot the main casing being provided with a-. adial passage which communicates with the interior of said rotary member and with said annular chamber, the interior ot said rotary member being provided with radially arranged blades and the exterior thereof with transverse blades, and means `tor connecting` the rotary member with a rotary part or the engine, and means tor placing the annular chamber in commirnication with the exhaust of the cylinder et the engine. A

2. A rotary muilier tor internal combustion engines, comprising a main cylindrical easing, a rotary member mounted therein and forming in connection with the main casing anl annular chamber, the rotary member being drum-shaped in term and one side thereof being open, means tor forming a communication between the opposite side of the rotary member .and said annular chamber, the opposite side of the main casing being provided with exhaust ports, and said rotary member being provided with internal radial blades and -with external transverse blades, and means for connecting the mulller with the engine Sothat the said annular chamber will be in c inmunication with the exhaust of the cylinder and the said rotary member in connectien with'a rotary part ot the engine.

3. A rotary muiiler torinternal combus tion engines, comprising'a main cylindrical casing, a rotary member mounted therein and forming in connection therewith an annular' chamber, said rotary member being drinn-shaped in term yandone side thereof `being open and the adjacent side ot the i aa " main casing being provided with exhaust gine, and said rotary member with .a rotary orts, means for orming a communication part of the engine. l etween the opposite side of the rot-ary mem- In testimony that I claim the foregoing ber and said annular chamber, said rotary as my invent-ion I have signed my name in 5 member being provided with internal `radial presence of the subscribing witnesses this .15

' blades and with external transverse blades 2nd `day of September 1910.`

which o crate in said annular chamber, and GEORGE LEWIS. meansv or connecting the muiiier with the .Witnesses: y engine so that said annular chamber will be C. E. MULREANY,

10 in connection with the exhaust of the en- RYERSON. 

